Active-Passive Water Classification Results over the Awash River Basin, Ethiopia for October 2014-March 2017

Resource type: Composite Resource
Storage: The size of this resource is 71.2 MB
Created: Mar 04, 2019 at 9:16 p.m.
Last updated: Mar 04, 2019 at 9:37 p.m.
DOI: 10.4211/hs.1dc753fcd04146faa76e5b139054d168
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Sharing Status: Published
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The “active-passive surface water classification” (APWC) method leverages cloud-based computing resources and machine learning techniques to merge Sentinel 1 synthetic aperture radar and Landsat observations and generate monthly 10-meter resolution waterbody maps. Merging data from two sensor types reduces the impact of errors associated with the individual sensors. The skill of the APWC method is demonstrated by mapping surface water change over the Awash River basin in Ethiopia from October 2014 through March 2017. This period corresponds to the 2015 East African regional drought and 2016 localized flood events. Errors of omission and commission in the case study area are 7.16% and 1.91%, respectively. These data were generated using the APWC method on August 18, 2017.

Subject Keywords

Resource Level Coverage


Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
East Longitude
South Latitude
West Longitude


Start Date:
End Date:




Derived From: Torres, R., Snoeij, P., Geudtner, D., Bibby, D., Davidson, M., Attema, E., et al. (2012). GMES Sentinel-1 mission. Remote Sensing of Environment, 120, 9–24.
Derived From: USGS. (2017a). Landsat 4-7 Surface Reflectance (LEDAPS) Product Version 7.9 (pp. 1–36). USGS.
Derived From: USGS. (2017b). Landsat 8 Surface Reflectance Code (LsSRC) Product Version 4.0 (pp. 1–36). USGS.

Related Resources

The content of this resource serves as the data for: Slinski, K., T. Hogue, and J. McCray. “Active-passive surface water classification: a new method for high resolution monitoring of surface water dynamics.” Geophysical Research Letters. (in review).


Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Graduate Research Fellowship DGE-1057607

How to Cite

Slinski, K., T. Hogue, J. McCray (2019). Active-Passive Water Classification Results over the Awash River Basin, Ethiopia for October 2014-March 2017, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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